PyDSTool on Windows 7 installation [duplicate] - python

I have downloaded PyDsTool for Windows. And I believe I have pointed python in the correct location. But I get the following error
from PyDSTool import *
Traceback (most recent call last):
File "<ipython-input-1-7b811358a37e>", line 1, in <module>
from PyDSTool import *
File "C:\Anaconda\lib\site-packages\pydstool-0.88.140328-py2.7.egg\PyDSTool\__init__.py", line 85, in <module>
from .Events import *
File "C:\Anaconda\lib\site-packages\pydstool-0.88.140328-py2.7.egg\PyDSTool\Events.py", line 13, in <module>
from .Variable import *
File "C:\Anaconda\lib\site-packages\pydstool-0.88.140328-py2.7.egg\PyDSTool\Variable.py", line 10, in <module>
from .utils import *
File "C:\Anaconda\lib\site-packages\pydstool-0.88.140328-py2.7.egg\PyDSTool\utils.py", line 8, in <module>
from .common import *
File "C:\Anaconda\lib\site-packages\pydstool-0.88.140328-py2.7.egg\PyDSTool\common.py", line 53, in <module>
import fixedpickle as pickle
ImportError: No module named fixedpickle

I solve this problem through uninstalling and reinstalling anaconda. Otherwise the installation of PyDsTools is very simple. It is not really installation at all, just unpack the zip folder and make sure it is in your python path (also add its parent directories to the python path). This may be done through Spyder IDE. Click tools> pythonpath
I received some assistance from the Sourceforge support thread for the PyDStool project here

Related

ImportError: DLL load failed: The file cannot be accessed by the system

Traceback (most recent call last):
File "<ipython-input-9-a40793f9ded7>", line 7, in <module>
from sklearn.model_selection import train_test_split
File "C:\ProgramData\Anaconda3\lib\site-packages\sklearn\__init__.py", line 76, in <module>
from .base import clone
File "C:\ProgramData\Anaconda3\lib\site-packages\sklearn\base.py", line 16, in <module>
from .utils import _IS_32BIT
File "C:\ProgramData\Anaconda3\lib\site-packages\sklearn\utils\__init__.py", line 20, in <module>
from .validation import (as_float_array,
File "C:\ProgramData\Anaconda3\lib\site-packages\sklearn\utils\validation.py", line 21, in <module>
from .fixes import _object_dtype_isnan
File "C:\ProgramData\Anaconda3\lib\site-packages\sklearn\utils\fixes.py", line 18, in <module>
from scipy.sparse.linalg import lsqr as sparse_lsqr # noqa
File "C:\ProgramData\Anaconda3\lib\site-packages\scipy\sparse\linalg\__init__.py", line 113, in <module>
from .isolve import *
File "C:\ProgramData\Anaconda3\lib\site-packages\scipy\sparse\linalg\isolve\__init__.py", line 6, in <module>
from .iterative import *
File "C:\ProgramData\Anaconda3\lib\site-packages\scipy\sparse\linalg\isolve\iterative.py", line 10, in <module>
from . import _iterative
ImportError: DLL load failed: The file cannot be accessed by the system.
Got this error while trying to run some already used python scripts on pycharm. Has anybody had this error before and has he solved it? It started after I installed a package in python but never used it. The problem is located when I try to import train_test_split on scikit-learn and tensorflow, the sklearn package and seaborn. The other parts of the code seem unaffected.
I have already reinstalled anaconda and python as well as changing the python files. Any help would be greatly appreciated.
After reinstalling the python as well as updating all the packages (conda update --all) and changing the PATH file, it seems that the issue is solved in all of my IDE's except PyCharm. It seems that all that remains is an interpreter issue. I will post updates if something else comes into my attention.

Cannot import tensorflow in python3 and ImportError: This package should not be accessible on Python 3

I am trying to use tensorflow for research in my macbook. I use pip3 to install tensorflow in the system (not in virtual environment).
At first, I just want to verify tensorflow can be correctly imported via python3 in terminal. However, sometimes, I got the following problem when importing.
>>>import tensorflow as tf
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/cyan/Library/Python/3.5/lib/python/site-packages/tensorflow/__init__.py", line 24, in <module>
from tensorflow.python import pywrap_tensorflow # pylint: disable=unused-import
File "/Users/cyan/Library/Python/3.5/lib/python/site-packages/tensorflow/python/__init__.py", line 47, in <module>
import numpy as np
File "/Library/Python/2.7/site-packages/numpy/__init__.py", line 142, in <module>
from . import add_newdocs
File "/Library/Python/2.7/site-packages/numpy/add_newdocs.py", line 13, in <module>
from numpy.lib import add_newdoc
File "/Library/Python/2.7/site-packages/numpy/lib/__init__.py", line 8, in <module>
from .type_check import *
File "/Library/Python/2.7/site-packages/numpy/lib/type_check.py", line 11, in <module>
import numpy.core.numeric as _nx
File "/Library/Python/2.7/site-packages/numpy/core/__init__.py", line 14, in <module>
from . import multiarray
ImportError: dlopen(/Library/Python/2.7/site-packages/numpy/core/multiarray.so, 2): Symbol not found: _PyBuffer_Type
Referenced from: /Library/Python/2.7/site-packages/numpy/core/multiarray.so
Expected in: flat namespace in /Library/Python/2.7/site-packages/numpy/core/multiarray.so
This error could only be solved if I ran the following code firstly before python3 execution
unset PYTHONPATH
If I didn't unset PYTHONPATH, I also found errors when checking the version of pip3 using
pip3 --version
The errors are shown as follows.
>> pip3 --version
Traceback (most recent call last):
File "/usr/local/bin/pip3", line 6, in <module>
from pip._internal import main
File "/Library/Python/2.7/site-packages/pip/_internal/__init__.py", line 19, in <module>
from pip._vendor.urllib3.exceptions import DependencyWarning
File "/Library/Python/2.7/site-packages/pip/_vendor/urllib3/__init__.py", line 8, in <module>
from .connectionpool import (
File "/Library/Python/2.7/site-packages/pip/_vendor/urllib3/connectionpool.py", line 11, in <module>
from .exceptions import (
File "/Library/Python/2.7/site-packages/pip/_vendor/urllib3/exceptions.py", line 2, in <module>
from .packages.six.moves.http_client import (
File "/Library/Python/2.7/site-packages/pip/_vendor/urllib3/packages/six.py", line 203, in load_module
mod = mod._resolve()
File "/Library/Python/2.7/site-packages/pip/_vendor/urllib3/packages/six.py", line 115, in _resolve
return _import_module(self.mod)
File "/Library/Python/2.7/site-packages/pip/_vendor/urllib3/packages/six.py", line 82, in _import_module
__import__(name)
File "/Library/Python/2.7/site-packages/http/__init__.py", line 7, in <module>
raise ImportError('This package should not be accessible on Python 3. '
ImportError: This package should not be accessible on Python 3. Either you are trying to run from the python-future src folder or your installation of python-future is corrupted.
I thought it was so inconvenient to unset PYTHONPATH every time, so is there any solutions for this problem? I also want to import tensorflow in other text editor, such as Sublime and Pycharm, so I was really not sure what to do next.
I tried the same scenario. It is working fine for me. In the first error it seems your python installation is messed up. If you are using python3 in terminal, it should not refer to 2.7 libraries.
Also I dont think you require unset PYTHONPATH everytime. First thing is you dont need to setup PYTHONPATH. It seems the installation got issue.
You using homebrew in mac to install packages. If not I will say use homebrew and it will work as charm. As it adds dependency properly.
Thanks,
Ashish

Python embedding, ImportError: cannot import name _remove_dead_weakref

I am trying to run some C++ code with embedded Python. Code was working completely fine a couple of weeks ago. The code still compiles, but I am now getting the error
Traceback (most recent call last):
File "./main.py", line 1, in <module>
import numpy as np
File "/usr/local/lib/python2.7/site-packages/numpy/__init__.py", line 142, in <module>
from . import add_newdocs
File "/usr/local/lib/python2.7/site-packages/numpy/add_newdocs.py", line 13, in <module>
from numpy.lib import add_newdoc
File "/usr/local/lib/python2.7/site-packages/numpy/lib/__init__.py", line 8, in <module>
from .type_check import *
File "/usr/local/lib/python2.7/site-packages/numpy/lib/type_check.py", line 11, in <module>
import numpy.core.numeric as _nx
File "/usr/local/lib/python2.7/site-packages/numpy/core/__init__.py", line 74, in <module>
from numpy.testing.nosetester import _numpy_tester
File "/usr/local/lib/python2.7/site-packages/numpy/testing/__init__.py", line 10, in <module>
from unittest import TestCase
File "/usr/local/opt/python/Frameworks/Python.framework/Versions/2.7/lib/python2.7/unittest/__init__.py", line 64, in <module>
from .main import TestProgram, main
File "/usr/local/opt/python/Frameworks/Python.framework/Versions/2.7/lib/python2.7/unittest/main.py", line 7, in <module>
from . import loader, runner
File "/usr/local/opt/python/Frameworks/Python.framework/Versions/2.7/lib/python2.7/unittest/runner.py", line 7, in <module>
from .signals import registerResult
File "/usr/local/opt/python/Frameworks/Python.framework/Versions/2.7/lib/python2.7/unittest/signals.py", line 2, in <module>
import weakref
File "/usr/local/opt/python/Frameworks/Python.framework/Versions/2.7/lib/python2.7/weakref.py", line 14, in <module>
from _weakref import (
ImportError: cannot import name _remove_dead_weakref
Since then the only change I have made is to install the macOS Supplemental Update and to upgrade Python from 2.7.13_1 to 2.7.14_2 (using Homebrew). I have changed the relevant linker flags in the makefile, i.e. those that appear when I type python-config --ldflags. I have also made sure that the Python I am using is definitely the Homebrew one by inserting export PATH="/usr/local/opt/python/libexec/bin:$PATH" into my .bash_profile as directed by Homebrew.
I am not sure whether this error is because of the Python update, the recent macOS Supplemental Update, or something else. Any idea what the problem could be?
Thanks
I had the same problem;
In python 2.7 the NumPy 1.8.0 was available,
Then I installed NumPy (again) using brew, and it wasn't available in my python (2.7) anymore. (Got the same error you got here)
So I did "brew unlink python && brew link python" to use python 3 (instead of 2) which NumPy 1.14 is available in it.
I guess the python 2.7 was not compatible with this recent version of NumPy.

ImportError: No module named fixedpickle when running PyDsTool on Windows 7

I have downloaded PyDsTool for Windows. And I believe I have pointed python in the correct location. But I get the following error
from PyDSTool import *
Traceback (most recent call last):
File "<ipython-input-1-7b811358a37e>", line 1, in <module>
from PyDSTool import *
File "C:\Anaconda\lib\site-packages\pydstool-0.88.140328-py2.7.egg\PyDSTool\__init__.py", line 85, in <module>
from .Events import *
File "C:\Anaconda\lib\site-packages\pydstool-0.88.140328-py2.7.egg\PyDSTool\Events.py", line 13, in <module>
from .Variable import *
File "C:\Anaconda\lib\site-packages\pydstool-0.88.140328-py2.7.egg\PyDSTool\Variable.py", line 10, in <module>
from .utils import *
File "C:\Anaconda\lib\site-packages\pydstool-0.88.140328-py2.7.egg\PyDSTool\utils.py", line 8, in <module>
from .common import *
File "C:\Anaconda\lib\site-packages\pydstool-0.88.140328-py2.7.egg\PyDSTool\common.py", line 53, in <module>
import fixedpickle as pickle
ImportError: No module named fixedpickle
I solve this problem through uninstalling and reinstalling anaconda. Otherwise the installation of PyDsTools is very simple. It is not really installation at all, just unpack the zip folder and make sure it is in your python path (also add its parent directories to the python path). This may be done through Spyder IDE. Click tools> pythonpath
I received some assistance from the Sourceforge support thread for the PyDStool project here

ImportError: Module use of python26.dll conflicts with this version of Python

I use Python 3.2.3
Tonight I tried to install requests from http://docs.python-requests.org/en/latest/ by pip and easy_install, but it doesn't work. I have error when trying to import it. So I decided to use standard library urllib.request and see this error again
That is the traceback:
>>> import requests
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "E:\Python32\lib\site-packages\requests-1.2.0-py3.2.egg\requests\__init__.py", line 52, in <module>
from . import utils
File "E:\Python32\lib\site-packages\requests-1.2.0-py3.2.egg\requests\utils.py", line 12, in <module>
import cgi
File "E:\Python32\lib\cgi.py", line 38, in <module>
from email.parser import FeedParser
File "E:\Python32\lib\email\parser.py", line 12, in <module>
from email.feedparser import FeedParser
File "E:\Python32\lib\email\feedparser.py", line 27, in <module>
from email import message
File "E:\Python32\lib\email\message.py", line 17, in <module>
from email import utils
File "E:\Python32\lib\email\utils.py", line 28, in <module>
import socket
File "E:\Python32\lib\socket.py", line 46, in <module>
import _socket
ImportError: Module use of python26.dll conflicts with this version of Python.
So how can I fix this?
UPD: Solved. It was bug in SublimeREPL, reinstalled that package.
I had a similar problem when I was using PythonXY. The Spyder was not loading and it turns out another software OpenCAD had installed Python2.6 version and that was not letting my Python27.dll to not work. After uninstalling OpenCAD, I was able to run the software.
I was able to troubleshoot by first searching for python26.dll and found that this file was located in the OpenCAD folder location and that made me realize that this software was causing the issue.

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